Finding the Fourth Proportional to 813,382.08, 1,220,328.17 and 489,523.53
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Solution
The fourth proportional to 813,382.08, 1,220,328.17 and 489,523.53 is: 734,438.79
Step by Step Solution
- Step 1: Write the proportion equation
813,382.08 : 1,220,328.17 = 489,523.53 : x - Step 2: Convert to fraction form
813,382.08/1,220,328.17 = 489,523.53/x - Step 3: Cross multiply
813,382.08x = 1,220,328.17 × 489,523.53 - Step 4: Simplify right side
813,382.08x = 597,379,353,536.84 - Step 5: Solve for x
x = 597,379,353,536.84/813,382.08 - Step 6: Final answer
x = 734,438.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.